Datasheet

MAX31850/MAX31851
Cold-Junction Compensated, 1-Wire
Thermocouple-to-Digital Converters
8Maxim Integrated
Pin Description
Pin Configuration
PIN NAME FUNCTION
1 GND Ground
2 T- Thermocouple Input. See Table 1. Do not connect to GND.
3 T+ Thermocouple Input. See Table 1.
4 V
DD
Power-Supply Voltage
5 DQ
Data Input/Output. Open-drain 1-Wire interface pin. Also provides power to the device when used in
parasite-power mode (see the Parasite Power section.)
6 AD0 Location Address Input (Least Significant Bit)
7 AD1 Location Address Input
8 AD2 Location Address Input
9 AD3 Location Address Input (Most Significant Bit)
10 DNC Do Not Connect
— EP Exposed Pad. No internal connection. Connect to GND or leave unconnected.
+
EP
6
AD0
7
AD1
10
DNC
9
AD3
8
AD2
DQV
DD
GND T- T+
54
1 2 3
TDFN-EP
(3mm x 4mm)
TOP VIEW
MAX31850
MAX31851